Add Bundle Pricing

[bupp925]

Magento will display Bundle items with a "From" and "To" price value. To match, we need some variation of "min_price" and "max_price" added to the feed - or at least just the max_price, should final_price already be the min.

"max_price" would be the highest possible selling price, when the highest of all options have been selected for purchase: https://www.relaxtheback.com/tempur-flex-prima.html

I realize M2 would use different code, but the following is what I'm requesting, as I had to add in M1:
https://gist.github.com/bupp925/803e8f0252393b425a965169e26dc7ce#file-setpricing-php-L50